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The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
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Explicit finite-difference simulation of optical integrated devices on massive parallel computers.

T Sterkenburgh, R M Michels, P Dress

    Applied Optics
    |February 20, 1997
    PubMed
    Summary

    The finite-difference time-domain (FDTD) method offers accurate numerical simulations for optical integrated circuits. This approach, applied to nonparaxial problems, yields promising quantitative results with acceptable numerical losses.

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    Area of Science:

    • Photonics and Optical Engineering
    • Computational Electromagnetics

    Background:

    • Numerical simulations are crucial for designing complex optical integrated circuits.
    • Established methods often face challenges with nonparaxial effects common in integrated optics.

    Purpose of the Study:

    • To present an explicit finite-difference time-domain (FDTD) method for simulating optical integrated circuits.
    • To evaluate the FDTD method's efficacy for nonparaxial problems in integrated optics.

    Main Methods:

    • Utilizing an explicit solution of Maxwell's equations, a technique well-established in microwave technology.
    • Applying the FDTD method to simulate three specific, nonparaxial problems representative of integrated optical devices.

    Main Results:

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  • The FDTD method demonstrated accurate simulation of optical integrated circuit behaviors.
  • Numerical losses were found to be within acceptable limits for the tested scenarios.
  • The method effectively handled nonparaxial problems typical in integrated optics.

    • Conclusions:

    • The explicit finite-difference time-domain (FDTD) method is a viable and effective tool for numerical simulations in optical integrated circuits.
    • The FDTD approach provides promising quantitative simulation results, even for challenging nonparaxial scenarios.
    • This method warrants further adoption for advancing the design and analysis of integrated optical devices.